"There are forces stronger than any magic, but it worked for many years. No one understands spirits completely, not even Mog-ur." The Clan of the Cave Bear (1980)
Suddenly, from another direction came the thwack, thwack of two stones fired in quick succession. They landed squarely on the [hyena]'s head and [it] dropped in its tracks. The Clan of the Cave Bear (1980)